feat: check if the validator address belongs to the validator committee

[cpl121]

Closes #8172

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[marc2332]

I am getting logAndNotifyError.ts:15 cannot deserialize AccountAddress: missing field accountId at line 1 column 54 not sure if whether I am using an old SDK or what

[cpl121]

I am getting logAndNotifyError.ts:15 cannot deserialize AccountAddress: missing field accountId at line 1 column 54 not sure if whether I am using an old SDK or what

I can see it well with the latest version of the sdk

[evavirseda]

looks good!

error is not present